\begin{tikzpicture}[>=Stealth, scale=0.8]
    \draw [->] (-3.5,0) -- (3.5,0) node[anchor=north] {$x$};
    \draw [->] (0,-3.5) -- (0,3.5) node[anchor=east] {$y$};
    \node at (-0.3,-0.3) {$O$};
    \draw [name path=c] (0, 0) circle(2.5);

    \draw [name path=a1] (0,0) -- (140:3.5);
    \draw [->] (0.5, 0) arc (0:140:0.5);
    \node at (0.5, 0.5) {$\alpha$};
    \draw [name intersections={of=a1 and c, by=A}]
       let \p1=(A)
       in (A) +(-0.2, 0) node[anchor=east] {$P(x, y)$}
          (\x1,\y1) -- (\x1, 0) node [anchor=north] {$M$}
          (\x1, 0.3) -- +(0.3,0) -- +(0.3, -0.3);

    \draw [name path=a2] (0,0) -- (320:3.5);
    \draw [->] (1.0, 0) arc (0:320:1.0);
    \node at (1.1, 1.2) {$180^\circ + \alpha$};
    \draw [name intersections={of=a2 and c, by=A}]
      let \p1=(A)
      in (A) +(0.2, 0) node[anchor=west] {$P'(-x, -y)$}
        (\x1,\y1) -- (\x1, 0) node [anchor=south] {$N$}
        (\x1, -0.3) -- +(0.3,0) -- +(0.3, 0.3);
\end{tikzpicture}
